Host options and settings for IBM XIV systems

You must use specific settings to identify Storwize® V3500 clustered systems as hosts to IBM® XIV® Storage System systems.

An XIV Nextra™ host is a single WWPN, so one XIV Nextra host must be defined for each Storwize V3500 node port in the clustered system. An XIV Nextra host is considered to be a single SCSI initiator. Up to 256 XIV Nextra hosts can be presented to each port. Each Storwize V3500 host object that is associated with the XIV Nextra system must be associated with the same XIV Nextra LUN map because each LU can be only in a single map.

An IBM XIV Storage System Type Number 2810 host can consist of more than one WWPN. Configure each Storwize V3500 node as an IBM XIV Storage System Type Number 2810 host and create a cluster of IBM XIV Storage System systems that corresponds to each of the Storwize V3500 nodes in the Storwize V3500 system.

Table 1 lists the host options and settings that can be changed by using the IBM XIV Storage System and XIV Nextra Storage Management GUI.

Table 1. IBM XIV Type Number 2810 and XIV Nextra host options and required settings
Option Data type Range IBM XIV Storage System Type Number 2810 and XIV Nextra default setting Storwize V3500 required setting Notes
Type Enum FC/iSCSI Not applicable FC The Type must be FC for Storwize V3500.
XIV Nextra map_set_special_type CLI command or IBM XIV Storage System Type Number 2810 special_type_set CLI command Enum default/hpux default default This command is used by hpux hosts only. Do not use the command for Storwize V3500 LUNs.
WWPN int64 Any Not applicable Node port For XIV Nextra, one host for each node port WWPN in the clustered system must be defined. For IBM XIV Storage System, Type Number 2810 one host port for each node port WWPN in the clustered system must be defined.
LUN Map String Any Not applicable Any For XIV Nextra, each Storwize V3500 host in the XIV Nextra system must be associated with the same LUN map because each LU can be only in a single map.